All is not well over at X Factor towers with back-biting and bitching amongst the finalists.

Leonard Cohen's song Hallelujah has been chosen as the winner's track, but because Diana has already performed it her rivals believe she has an unfair advantage.

They feel that the competition has already been sewn up and have accused show bosses of favouritism.

There's no secret that the judges love Diana. Louis gushed over her version of Take That's Patience: "That is my favourite Take That song, you made it your own. You sounded contemporary, and you have a great recording voice."  Simon added: "I adore you."

Simon was reported to have spoken out at a charity dinner saying Diana was his choice to win, and now the remaining contestants feel the winner's song suit her vocals the best.

A show source told the Daily Mirror that tempers are rising: "Diana was getting let off through one heat because she was ill  - although Alexandra was told to keep her exact same illness quiet and perform."

"Many suspect producers are paving the way for Diana to win and there is nothing they can do. They feel that even if the public put her in the bottom two, the judges will always save her."

In other Di goss, the 17 year old is apparently loved up with finalist Eoghan. The two teenagers have been trying to keep their romance under wraps, but have been rumbled.

A show source told the Sun: "They don't care who knows they're an item any more. They're always together and everybody knows they're a couple now."